How many plumbing contractors are in LATHROP, CA?

4 with a current California license, as of 2026-08-31.

How do I check a California contractor license is current?

Every listing shows its state license number and expiry date. Verify any of them directly against the California CSLB licensee database.

Plumbing contractors in LATHROP, CA

4 listings

Source: California CSLB license records. Last verified 2026-08-31.

There are 4 plumbing contractors in LATHROP, California with a current state license as of 2026-08-31. The earliest license expiry among them is 2026-10-31; every listing shows its own number and expiry date. All are drawn from the California CSLB register; expired and inactive licenses are excluded.

Business	License	Type	Expires	City	Zip
BEST BAY PLUMBING	927823	C-36	2027-01-31	LATHROP	95330	Set up workspace
FUEL OIL SYSTEMS	793536	A, C-10, C-34, C-36, HAZ	2027-04-30	LATHROP	95330	Set up workspace
KNIGHTS PLUMBING AND DRAIN	813548	C-36	2026-10-31	LATHROP	95330	Set up workspace
NACHO'S PLUMBING	1116452	C-36	2028-02-29	LATHROP	95330	Set up workspace

Quick answers

How many plumbing contractors are in LATHROP?: 4 with a current California license, as of 2026-08-31.
How do I check a license is current?: Every listing shows its state license number and expiry. Verify any of them directly against the California CSLB licensee database.